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首页> 美国政府科技报告 >TIME-RESOLVED SPARK-SOURCE MASS SPECTROMETRY;THE EFFECT OF SPARK DURATION ON RELATIVE SENSITIVITY FACTORS, ION INTENSITY, AND PRECISION OF ANALYSIS
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TIME-RESOLVED SPARK-SOURCE MASS SPECTROMETRY;THE EFFECT OF SPARK DURATION ON RELATIVE SENSITIVITY FACTORS, ION INTENSITY, AND PRECISION OF ANALYSIS

机译：时间分辨的火花源质谱;火花持续时间对相对灵敏度因子，离子强度和分析精度的影响

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摘要

A radio-frequency, high-voltage spark ion source in conjunction with a double-focusing mass spectrometer has been used to measure the relative sensitivity factors for several elements in matrices of tin, iron, beryllium oxide, uranium, and steels. The sensitivity factors were examined for con¬centration and matrix effects. No significant variations were found for the concentration ranges studied, but there were very large sensitivity variations with changes in the matrix type.nThe precision in determining concentrations and relative sensitivity factors was compared for two methods of data interpretation and, in one case, a decrease in precision was shown to be due to sample nonhomogeneity. Because of the lack of reproducibility in the relative sensitivity factors and the corresponding lack of accuracy, a study was made of ion-intensity varia¬tions with elapsed time in a radio-frequency spark pulse.

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  • 作者

    J. C. Franklin;

  • 作者单位
  • 年度 1971
  • 页码 1-138
  • 总页数 138
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 工业技术;
  • 关键词

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